120801641617 has 2 divisors, whose sum is σ = 120801641618. Its totient is φ = 120801641616.

The previous prime is 120801641581. The next prime is 120801641669. The reversal of 120801641617 is 716146108021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92811013201 + 27990628416 = 304649^2 + 167304^2 .

It is a cyclic number.

It is not a de Polignac number, because 120801641617 - 2²⁷ = 120667423889 is a prime.

It is not a weakly prime, because it can be changed into another prime (120801641687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60400820808 + 60400820809.

It is an arithmetic number, because the mean of its divisors is an integer number (60400820809).

Almost surely, 2^120801641617 is an apocalyptic number.

It is an amenable number.

120801641617 is a deficient number, since it is larger than the sum of its proper divisors (1).

120801641617 is an equidigital number, since it uses as much as digits as its factorization.

120801641617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

Adding to 120801641617 its reverse (716146108021), we get a palindrome (836947749638).

The spelling of 120801641617 in words is "one hundred twenty billion, eight hundred one million, six hundred forty-one thousand, six hundred seventeen".